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Finding the Fourth Proportional to 151,068.66, 208,470.58 and 83,085.65

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Solution

The fourth proportional to 151,068.66, 208,470.58 and 83,085.65 is: 114,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,068.66 : 208,470.58 = 83,085.65 : x
  2. Step 2: Convert to fraction form
    151,068.66/208,470.58 = 83,085.65/x
  3. Step 3: Cross multiply
    151,068.66x = 208,470.58 × 83,085.65
  4. Step 4: Simplify right side
    151,068.66x = 17,320,913,352.13
  5. Step 5: Solve for x
    x = 17,320,913,352.13/151,068.66
  6. Step 6: Final answer
    x = 114,655.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.